CD

1. Cluster designation, cluster of differentiation Immunology A nomenclature system for surface antigens of human leukocytes, macrophages, platelets, and other cells, characterized by monoclonal antibodies, allowing these cells to be categorized by lineage; most cells have > 1 surface antigen; 'w'–workshop designations indicate an incompletely characterized antigen; also 1. Chemical diabetic.

2. Chief of division.

3. Childhood disease.

4. Common duct.

5. Communicable disease.

6. Compact disk.

7. Complicated delivery.

8. Contact dermatitis.

9. Controlled drug.

10. Convulsive disorder.

11. Corneal dystrophy.

12. Crohn's disease.

13. Cystic duct.

14. Left posterior descending coronary artery, see there.

CD

Abbreviation for cumulative dose;

curative dose;

circular dichroism;

cluster of differentiation.

Cd

Symbol for cadmium.

CD

Abbrev. for. cluster of differentiation (or designation). This is a standard descriptive code applied to antigenic surface molecules on white cells, especially T LYMPHOCYTES, that are identified by a particular group of monoclonal antibodies. Well over 100 CD receptors have been described.

Most of the current-generation recorders are capable of recording files in the standard CD-DA (digital audio), CD-ROM data (both IBM and Mac file formats), and CD-ROM XA (interleaved audio and video) formats if the premastering software provides the support.

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